Depends on the failure. It can fool the ECU into thinking the engine is
always warm (which will cause symptoms like hard start when cold), or fool
the ECU into thinking the engine is always cold (which will take the O2
sensor out of the loop all the time, affecting gas mileage, and making warm
starts harder).

At 09:28 AM 4/25/2006 -0700, Geo & Kathleen Hahn wrote:
>Wouldn't a failed Temp II make it almost impossible to start... but only
>after the engine was hot (this is happening one minute after initial
>start-up)?  Also, wouldn't a failed sensor give really poor gas mileage
>(the sort anyone would notice?).
>
>Geo H
>
>Joy Hecht wrote:
>
>>Hmm, two votes for temp 2 sensor.  Drat, I was hoping it was more trivial.
>>Even _I_ can deal with a new battery.
>>
>>When I first start it in the morning it starts fine.  Then within say a
>>minute it finds an excuse to die.  Then it cranks but doesn't start.  Then
>>after a couple of minutes it starts okay.  When it is about to die, the
>>battery light flickers on and off - if I rev it gently, it doesn't die and
>>comes back to life.  Then if I sit for a bit and rev it gently and let it
>>purr a bit, it drives fine.
>>
>>This has only happened first thing in the morning - hasn't happened when
>>I've left it parked for a few hours in the afternoon.
>
>
>
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